EP 0201147 A1 19861112 - Pump.
Title (en)
Pump.
Title (de)
Pumpe.
Title (fr)
Pompe.
Publication
Application
Priority
NL 8501315 A 19850508
Abstract (en)
An apparatus for pumping a fluid, said apparatus comprising substantially a housing (1) with two or more parallel cyclindrical pump chambers (2) in each of which a piston (10) is reciprocally moveable, said piston (10) is connected via a piston-rod (13) to a rocker-piece (21) mounted on a driving shaft (22) parallel to the cylinders and rotatably journalled in the housing, wherein the piston-rod (13) is connected at one end fixedly to the piston (10) and at the other end movably to the rocker-piece (21), the piston-rod (13) being at the piston-end tiltable around a transverse axis with respect to the housing (1), and wherein a bush (15) of a hard material such as ceramic material is fitted around the piston (10), said bush cooperating with one or more sealing means (16, 17), in order to avoid wear at the usual joints between the piston-rod (13) and piston (10) and leakage over the sealing (16, 17) between the compression and drive side respectively.
IPC 1-7
IPC 8 full level
F04B 1/12 (2006.01); F04B 1/14 (2006.01); F04B 1/20 (2006.01); F04B 19/02 (2006.01); F04B 53/16 (2006.01)
CPC (source: EP US)
F04B 1/124 (2013.01 - EP US); F04B 1/143 (2013.01 - EP US); F04B 19/027 (2013.01 - EP US); F04B 53/162 (2013.01 - EP US)
Citation (search report)
- [Y] FR 904061 A 19451025 - MORANE JEUNE ETS
- [Y] US 3359810 A 19671226 - HANSEN JOHN M
- [A] US 2240121 A 19410429 - PATTERSON GLENN A
- [A] GB 2146096 A 19850411 - HELIX TECH CORP
- [A] FR 1224096 A 19600622
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0201147 A1 19861112; EP 0201147 B1 19890816; AT E45612 T1 19890915; CA 1278953 C 19910115; DE 3665091 D1 19890921; DK 213086 A 19861109; DK 213086 D0 19860507; ES 554720 A0 19870416; ES 8705082 A1 19870416; JP S61255280 A 19861112; NL 8501315 A 19861201; US 4800801 A 19890131
DOCDB simple family (application)
EP 86200813 A 19860507; AT 86200813 T 19860507; CA 508598 A 19860507; DE 3665091 T 19860507; DK 213086 A 19860507; ES 554720 A 19860507; JP 10396486 A 19860508; NL 8501315 A 19850508; US 86002686 A 19860506